Based on our record, Regex Crossword seems to be a lot more popular than RegexPal. While we know about 68 links to Regex Crossword, we've tracked only 3 mentions of RegexPal. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
BUT - As far as resources for building out the regex patterns, I use regexpal.com and a copy of this https://cheatography.com/davechild/cheat-sheets/regular-expressions/pdf/ printed out beside me. Once you get into it, the power of subgroups, and lookahead/behind processing beats some of the mental gymnastics you would need to go to code it out in your language of choice. Source: almost 3 years ago
Spend an afternoon really diving into it, bookmark regexpal.com, and call it a day IMO. Source: almost 3 years ago
i’m a professional developer and I just relearn it every time I need it, which is about once or twice a year, but depending on someone’s specialty they may swim around in it all day. It can get really complicated. https://regexpal.com is where I kick it around testing until it works. Source: almost 3 years ago
I'm surprised nobody's mentioned the other Regex Crossword [0], it's shown up on HN several times [1][2] and has a fantastic user-submitted puzzle section (that includes the MIT Mystery Hunt puzzle [3]) and a puzzle builder. 0: https://regexcrossword.com/ 1: https://news.ycombinator.com/from?site=regexcrossword.com 3: https://regexcrossword.com/playerpuzzles/8cbea27f-c4c5-4d11-a509-6a622ba01107. - Source: Hacker News / 9 months ago
The Regex Crossword was the first thing that made it click for me: https://regexcrossword.com/. - Source: Hacker News / 9 months ago
I really liked Mastering Regular Expressions by Jeffrey Friedl. He goes in depth on what they are (with a bit of FSA background) and how a regex engine works. It helps conceptualize what's going on and how to know what your specific regex library is doing. Does that matter all that much? Not necessarily, but it's good to know things like whether or not your regex can blow in time complexity due to back tracking or... - Source: Hacker News / 11 months ago
The only good thing to come out of regular expressions is https://regexcrossword.com/. - Source: Hacker News / over 1 year ago
I thought this crossword, where one can start learning regex step-by-step. A great app, though. https://regexcrossword.com/. - Source: Hacker News / over 1 year ago
regular expressions 101 - Extensive regex tester and debugger with highlighting for PHP, PCRE, Python and JavaScript.
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
i Hate Regex - regex cheatsheet for the haters
RegexOne - RegexOne offers learning regular expressions with simple, interactive examples.
Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.
100 Days of Wordplay - 100 Day Project - 100 mini crossword puzzles